Calculate the frequency of a ray of blue light with a wavelength of 8.7x10^-10m .

14,16 18 reacts with group

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.